A top-secret arm of the controversial Stellar Wind program set up in the wake of 9/11 is allowing the National Security Agency and the FBI to tap directly into the central servers of nine major Internet companies to extract audio, video, photos, emails and documents that let analysts track an individual’s communication, CBS News has learned.

The admitted mastermind of one of the most serious terror threats since the Sept. 11, 2001, attacks — a foiled plot to attack New York City subways — testified Wednesday that al-Qaida trainers taught him a “very simple” formula for making suicide bombs.

The admitted mastermind of a foiled plot to bomb New York City subways testified Tuesday that he wanted to fight jihad in Afghanistan after coming to believe that the U.S. government was behind the Sept. 11, 2001, attacks.